Results 61 to 70 of about 18,198 (165)

Technique considerations for implementing volumetric‐modulated arc therapy for total body irradiation within an Australian tertiary institution

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 165-172, March 2025.
In 2020, our institution transitioned to the Eclipse™ treatment planning system and to Truebeam® linear accelerators with 6 MV and 10 MV energies. The linear accelerators were installed in smaller bunkers that could not accommodate 400 cm FAD. A multidisciplinary team within the institution was created to evaluate existing total body irradiation ...
Gabriella La Macchia, Clare Wan, Joshua Dass, Mandy Taylor, Gabor Neveri, Malgorzata Skorska   +5 more
wiley   +1 more source

Measurement of the Charge Collection Efficiency after Heavy Non-Uniform Irradiation in BaBar Silicon Detectors

, 2005
We have investigated the depletion voltage changes, the leakage current increase and the charge collection efficiency of a silicon microstrip detector identical to those used in the inner layers of the BaBar Silicon Vertex Tracker (SVT) after heavy non ...
/INFN, Pisa /Pisa U. /SLAC, /INFN, Trieste /Trieste U., /UC, Santa Barbara, Bettarini, S., Bondioli, M., Bosisio, L., Calderini, G., Campagnari, C., Dittongo, S., Forti, F., Giorgi, M.A., Marchiori, G., Rizzo, G.   +12 more
core   +4 more sources

Real‐time radiation beam imaging on an MR linear accelerator using quantitative T1 mapping

Medical Physics, EarlyView.
Abstract Background Direct three‐dimensional imaging of radiation beams could enable more accurate radiation dosimetry. It has been previously reported that changes in T1‐weighted magnetic resonance imaging (MRI) intensity could be observed during radiation due to radiochemical oxygen depletion.
Brandon T. T. Tran, Liam S. P. Lawrence, Shawn Binda, Ryan T. Oglesby, Brige P. Chugh, Angus Z. Lau   +5 more
wiley   +1 more source

Dosimetry characterization of $^{32}$P intravascular brachytherapy source wires using Monte Carlo codes PENELOPE and GEANT4

, 2003
Monte Carlo calculations using the codes PENELOPE and GEANT4 have been performed to characterize the dosimetric parameters of the new 20 mm long catheter based $^{32}$P beta source manufactured by Guidant Corporation.
Agostinelli, Antonio M. Lallena, Asenjo, Bohm, Fox, Garcı́a-Toraño, Javier Torres, Julio F. Almansa, Li, Manuel J. Buades, Mourtada, Mourtada, Nath, Pocock, Pötter, Rafael Guerrero, Schaart, Sehgal, Sánchez-Reyes, Vynckier, Waksman, Wang   +21 more
core   +1 more source

Field output correction factors using a scintillation detector

Medical Physics, EarlyView.
Abstract Background As small radiation fields play an ever‐increasing role in radiation therapy, accurate dosimetry of these fields becomes critical to ensure high quality dose calculation and treatment optimization. Despite the availability of several small volume dose detectors, small field dosimetry remains challenging.
Luc Gingras, Yunuen Cervantes, Frederic Beaulieu, Magali Besnier, Benjamin Coté, Simon Lambert‐Girard, Danahé LeBlanc, Yoan LeChasseur, François Therriault‐Proulx, Luc Beaulieu, Louis Archambault   +10 more
wiley   +1 more source

Development of a linear array for intracavitary in vivo dosimetry during external beam radiotherapy and brachytherapy. [PDF]

, 2003
We present the details of a new linear array dosimeter consisting of a chain of semiconductors mounted on an ultra-thin (50 μm thick) flexible substrate and housed in an intracavitary catheter. The semiconductors, manufactured by NMRC Cork, have not been
Benson, C., Joyce, Malcolm J., Price, R. A., Rogers, K.   +3 more
core  

Commissioning of a precision preclinical 200 kV x‐ray irradiator based on modular adaptations

Medical Physics, EarlyView.
Abstract Background Preclinical research in radiation oncology encompasses a range of methodologies, including in vitro cell studies and in vivo small animal experiments, as well as in silico studies to evaluate radiation‐induced side effects and tumor responses.
Lorenz Wolf, Peter Kuess, Sabine Leitner, Dietmar Georg, Barbara Knäusl   +4 more
wiley   +1 more source

Characterization of a Commercial Ionization Chamber Array With Scanned Proton Beams for Applications in MRI‐Guided Proton Therapy

Medical Physics, EarlyView.
Abstract Background The integration of MRI‐guidance and proton therapy is a current research topic. Proton therapy with the patient being placed inside an in‐beam MR scanner would require the presence of its static magnetic (B0$B_0$) field to be taken into account in dose calculation and treatment planning.
Benjamin Gebauer, Sebastian Gantz, Daniela Kunath, Aswin Hoffmann, Jörg Pawelke, Felix Horst   +5 more
wiley   +1 more source

Characterizing diamond detectors for various dose and dose rate measurements in scanned carbon and oxygen beams

Medical Physics, EarlyView.
Abstract Background The emerging FLASH radiotherapy technique employs “Ultra‐High Dose Rate” (UHDR) irradiations and offers the potential to spare normal tissue while maintaining iso‐effective tumor treatment. Given the physical and biological advantages inherent to high “Linear Energy Transfer” (LET) particles, the combination of UHDR and high LET has
Celine Karle, Gianluca Verona‐Rinati, Stephan Brons, Rainer Cee, Stefan Scheloske, Christian Schömers, Rafael Kranzer, Thomas Haberer, Marco Marinelli, Andrea Mairani, Thomas Tessonnier   +10 more
wiley   +1 more source

High‐Electric Field Ultraviolet‐C Electroluminescence from LuPO4:Bi3+ Film on Silicon Substrate

physica status solidi (RRL) – Rapid Research Letters, EarlyView.
A mercury‐free ultraviolet‐C (UVC) electroluminescent device is demonstrated using LuPO4:Bi3+ optical functional material on a silicon substrate. The device is connected to alternating polarities, and UVC emission is observed when the minimum electric field is reached through a process called impact ionization.
Mohammad M. Afandi, Jongsu Kim
wiley   +1 more source